Senior Application Security Engineer

Responsibilities

• Design and implement secure-by-default platform controls to improve the security of APIs and services
• Build and evolve security enforcement layers, such as gateways, middleware, and policy engines, at scale
• Define and standardize security patterns to reduce the need for custom implementations across services
• Integrate security controls into developer workflows, infrastructure, and platform abstractions
• Identify recurring security risks and translate them into reusable, enforced platform primitives
• Partner with engineering teams to influence system design and embed security early in the development lifecycle
• Leverage application telemetry, including logs, traces, and metrics, to assess and improve security posture

Requirements

• Strong background in software engineering with experience building distributed systems
• Proficiency in Go or Python
• Experience designing and implementing security controls (e.g., authentication, authorization, or API security)
• Proven track record of building shared infrastructure, internal platforms, or enforcement mechanisms
• Deep understanding of identity, communication, and trust boundaries (e.g., mTLS, service identity, API gateways)
• Ability to make pragmatic security decisions that balance risk, usability, and scalability

Preferred Qualifications

• Experience with zero trust architectures or service-to-service security models
• Familiarity with policy-based systems or large-scale access control models
• Experience working with untrusted or non-deterministic workloads, such as sandboxing or agent-based systems
• Experience using observability and telemetry to drive security insights

Benefits

• New hire stock equity (RSUs) and employee stock purchase plan (ESPP)
• Continuous professional development, product training, and career pathing
• Inclusive company culture with access to Community Guilds and internal panel discussions
• Free, global mental health benefits for employees and dependents
• Competitive global benefits including healthcare, dental, and 401(k) with match

About the Company

Datadog is the leading observability and security platform for the AI era, providing businesses with unified visibility across the technology stack to manage complexity at scale. Trusted globally by Fortune 500 companies, Datadog enables businesses to move faster with clarity and confidence.